Ultramarine

#191ea1

Color Harmonies

Mathematical Matches
Monochromatic
#3f45e1#2026cd#191ea1#121675#0b0e49
Analogous
#1962a1#191ea1#5819a1
Complementary
#191ea1#a19c19
Split-Complementary
#191ea1#a15819#62a119
Triadic
#191ea1#a1191e#1ea119
Tetradic (Double Complementary)
#191ea1#a11962#a19c19#19a158

Readability & Contrast

Accessibility Audit & WCAG Compliance

Use Case: Standard White Text

White Text

AAA PASS
The Future
is Color.
Contrast Ratio12.05:1
Use Case: Standard Black Text

Black Text

FAIL
The Future
is Color.
Contrast Ratio1.74:1
Optimized AAA Text

Suggested Text

AAA PASS
The Future
is Color.
Contrast Ratio7.29:1
Recommended Monochrome
#c3c5fb
Optimized AAA Background

Suggested Background

AAA PASS
The Future
is Color.
Contrast Ratio7.27:1
Suggested Complement
#d5ce0d

Vision Deficiency Simulations

Protanopia

Red Blind

Deuteranopia

Green Blind

Tritanopia

Blue Blind

Achromatopsia

Total Color Blind

Developer Tools

Ready-to-use snippets for your codebase.

Closest Standard Class

bg-indigo-800Approx

Arbitrary Value (JIT)

<div class="bg-[#191ea1] text-white">
  <!-- Your Content -->
</div>

tailwind.config.js

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'brand': '#191ea1',
      }
    }
  }
}